[-3²-(-4³)]÷[(-9)-(-4)]
人气:133 ℃ 时间:2019-11-21 07:39:43
解答
[-3²-(-4³)]÷[(-9)-(-4)]
= ( - 9 + 64 ) ÷ ( -9 + 4 )
= 55 ÷ ( -5)
= -11
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